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Multicast route cache system

Inactive Publication Date: 2013-03-21
AVAGO TECH INT SALES PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides methods for organizing and grouping memory content related to multicast routing, which improve efficiency and scaling for multicast operations. These techniques involve grouping multicast entries based on multiple dimensions to enable more efficient searches during multicast operations. This can be useful for PIM multicast routing, for example.

Problems solved by technology

This need to traverse all mcache entries can lead to significant inefficiency if the number of mcache entries affected is very small relative to the number of entries.

Method used

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Examples

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Embodiment Construction

[0026]Attached as Appendix A are example data structures for memory cache used for multicast routing that may be implemented in accordance with an embodiment of the present invention.

[0027]Attached as Appendix B are example application programming interfaces (APIs) for memory cache used for multicast routing that may be implemented in accordance with an embodiment of the present invention.

[0028]It should be understood that the specific embodiments described in Appendices A and B are not limiting examples of the invention and that some aspects of the invention might use the teachings of Appendices A and B while others might not. It should also be understood that limiting statements in Appendices A and B may be limiting as to requirements of specific embodiments and such limiting statements might or might not pertain to the claimed inventions and, therefore, the claim language need not be limited by such limiting statements.

[0029]In the following description, for the purposes of expla...

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Abstract

Techniques for organizing and grouping memory contents related to multicast routing so as to enable more efficient multicast operations. For PIM multicast routing, techniques are provided for organizing and grouping multicast routing information into data structures according to a plurality of dimensions such that multicast routing cache entries are accessible when performing a multicast routing operation by traversing the one or more data structures according to at least two of the dimensions.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]The present application is a non-provisional of and claims the benefit and priority under 35 U.S.C. 119(e) of U.S. Provisional Application No. 61 / 535,901, filed Sep. 16, 2011, entitled MULTICAST ROUTE CACHE SYSTEM, the entire contents of which are incorporated herein by reference for all purposes.BACKGROUND[0002]The present disclosure relates to networking technologies, and more particularly to techniques for performing efficient multicast operations.[0003]Multicast routing protocols are used to distribute data to multiple recipients. IP multicasting enables a sender device (or sender host) to send a packet to a set of recipients. The set of recipients is referred to as a multicast group and is represented by an IP address referred to as the multicast address. A multicast address thus corresponds to or represents a group of IP hosts that have joined the multicast group and want to receive packets whose destination address is the multicas...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/28H04L45/16
CPCH04L45/16H04L12/185H04L45/742H04L45/48
Inventor PUDIYAPURA, AJEER SALIL
Owner AVAGO TECH INT SALES PTE LTD
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